I'm going to move my BT Homehub (yeah yeah, I know) from the living room to the room my computer is in so I can plug it directly into my computer. The phone socket however, is on the other side of the room to my computer.

I would like the router on my desk so I can plug the phone into it too... Is there any max distance the router can be from the phone outlet in the wall (using an extension cable)?

I have had a search around on the forums and google but didn't really find an answer.

The problem with extending the cable from your phone line is, the longer it is, the slower the internet goes. It'd be better to extend the ethernet cable to your computer and leave your home hub where it is.

However, from what you've said I'm guessing you're only moving it about <5m?